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441
Sulfate attack performance of concrete mixtures with use of copper slag as supplementary cementitious material
Published 2025-07-01Subjects: Get full text
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442
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Microstructural evolution and dry tribological properties of aluminium matrix composites reinforced with high-entropy alloys
Published 2025-12-01“…The reinforced AMCs were produced using the spark plasma sintering (SPS) technique with varying HEA contents (5%, 7%, 10%). Microstructural analysis of the reinforced composites showed enhanced interfacial bonding and minimal porosity. …”
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445
Eco-friendly alkali-activated nano concrete: Impact of nano-GGBFS on mechanical and microstructural properties
Published 2025-06-01“…The results show that varying concentrations of nGS enhanced the properties of AANC, with 12 % nGS yielding the best mechanical and microstructural performance. Microstructural studies, including Field Emission Scanning Electron Microscopy (FESEM), X-ray Diffraction (XRD), Energy Dispersive X-ray analysis (EDAX), Fourier Transform Infrared (FTIR), and Thermogravimetric Analysis (TGA), demonstrated superior geopolymerization at this optimal nGS content. …”
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446
Investigation of the Effect of Titanium Dioxide and Aluminum Titanate on Physical, Mechanical, and Microstructural Properties of Synthesized Cordierite
Published 2024-12-01“…X-ray diffractometry and fluorescence, thermal analysis, microstructural observation, density, and cold compressive strength (CCS) were used to evaluate the sintered samples. …”
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447
Prediction of Residual Stresses During the Hot Forging Process of Spherical Shells Based on Microstructural Evolution
Published 2025-03-01“…A unified viscoplastic constitutive model based on internal physical variables was proposed to predict the viscoplastic mechanical behavior and microstructure evolution of metals during hot forging. …”
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448
Impact of temperature changes on the microstructure and mechanical characteristics of AISI 304 submerged in 5% HCl solution
Published 2025-03-01“…To evaluate the various mechanical properties of the metal under immersion in HCl solution, various tests were performed such as tensile test, bending test, hardness test, microstructural analysis, and XRD which were compared with the same properties of untreated piece of metal. …”
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449
A Comprehensive Study on the Microstructure and Mechanical Behavior of Glycoluril–Formaldehyde Polymer-Modified Cement Paste
Published 2025-05-01“…The results demonstrate that a 3% addition of glycoluril–formaldehyde in concrete offers optimum performance, ensuring improved mechanical strength and microstructure. The microstructural investigation using optical microscopy, an X-ray diffraction, and SEM analysis confirms the polymerization of glycoluril–formaldehyde and the formation of a denser microstructure. …”
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450
Effect of copper mine tailings and copper slag on the hydration, microstructure, and mechanical property in Portland cement
Published 2025-06-01“…However, limited studies systematically compare CMT and CS with traditional SCMs in terms of hydration products and microstructural characteristics. And conflicting findings exist regarding their impact on mechanical performance and hydration mechanisms in Portland cement. …”
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451
Effect of asymmetric rolling in relief rolls on the microstructure evolution and mechanical properties of aluminum and copper workpieces
Published 2025-06-01“…To assess the efficacy of the investigated deformation scheme, the outcomes were contrasted with those of symmetrical rolling in relief rolls with subsequent alignment, as well as with conventional rolling in smooth rolls. The analysis of microstructure evolution demonstrated that three deformation cycles are sufficient to refine the initial grain by more than three times for the Al6063 alloy and by more than four times for the C11000 alloy. …”
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452
Study on the age and growth characteristics of Sepia esculenta in the East coast of China based on beak microstructure
Published 2025-06-01“…Among these, 178 individuals (81 females and 97 males) were successfully aged by analyzing growth increments in the sagittal section of the upper beak rostrum (RSS) using beak microstructure analysis. The mantle length (ML) of S. esculenta ranged from 55 to 201 mm and body weight (BW) from 30 to 667 g, with no significant sex differences. …”
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453
Assessment of Mechanical Behavior and Microstructure of Unsaturated Polyester Resin Composites Reinforced with Recycled Marble Waste
Published 2024-12-01“…Additionally, morphological and microstructural tests, namely, FT-IR, XRD, and SEM analysis, show a microstructural change, including the formation of crystalline phases, enhancing matrix-filler interactions due to the creation of Mg-O and Ca-O chemical bonds and the forming of filler agglomeration at high introduction rates that lead to defects in the microstructure. …”
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454
The effect of microstructure engineering on the pseudoelastic and elastocaloric enhancement of a Ni-rich Ti–Ni alloy
Published 2025-05-01“…The results revealed a partially uniform strain distribution of approximately 0.045 along the gauge length. The DIC analysis and microstructural study demonstrated that single-oriented strain bands with the lower Strain Localization Factor (SLF), because of fine grains and uniform cohesive interface between matrix and Ni4Ti3 precipitates, facilitated more effective reverse transformation and generated a greater elastocaloric response compared to crossed strain bands. …”
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455
Interactive influence of basalt fibres and pozzolanic additives on the mechanical and microstructural properties of self-compacting concrete
Published 2025-07-01“…To enhance the properties of the selected SCC mix further, the BFs are incorporated at varying percentages (0.1–0.3 %) by volume of concrete and examined. The microstructural properties are analysed using Scanning Election Microscope (SEM) with Energy-dispersive X-ray (EDX) analysis and X-ray Diffraction (XRD) spectroscopy. …”
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456
A strategy for adjusting the microstructure configuration and high temperature mechanical properties of Al–Cu alloys
Published 2025-05-01“…Furthermore, it can effectively suppress the coarsening of such precipitates at high temperature, thus achieving excellent strength and ductility. According to microstructure analysis, the aspect ratio of precipitates is substantial. …”
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457
Microstructural investigations on the Fractural behavior of SS304 butt joints developed through vibratory welding
Published 2024-11-01“…The tests such as tensile, Rockwell hardness and Charpy impact are conducted and fracture modes are identified. SEM analysis is performed to characterize the microstructure of different fractures between the developed butt joint on SS304 and susceptibility to crack is investigated. …”
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458
Genetically predicted white matter microstructure mediates the relationship between risk factors and lacunar stroke
“…Univariable MR assessed causal effects of risk factors on lacunar stroke. Two-step MR analysis evaluated mediation roles of WM microstructure, whereas multivariable MR accounted for confounders.Results Hypertension was identified as the strongest risk factor for lacunar stroke (OR=1.38; 95% CI: 1.28 to 1.50, p=4.43×10−15). …”
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459
Effects of Lightly Burnt MgO Expansive Agent on the Deformation and Microstructure of Reinforced Concrete Wall
Published 2019-01-01“…The results showed that LBMEA exhibited significant expansion around the end of the fall temperature stage; then, the expansion rate declined obviously, and concrete containing LBMEA with low hydration reactivity (140 s and 220 s) showed larger expansion than LBMEA with high hydration reactivity (60 s). Microstructural analysis indicated that brucite preferentially forms in the pores in cement paste containing LBMEA with high reactivity, but brucite mainly grows on the surface of the MgO particles in cement paste containing LBMEA with low reactivity during the early age. …”
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460
Role of shielding gas in tailoring microstructure and anisotropy in wire arc additive manufactured Inconel 686
Published 2025-07-01“…Cooling rates were highest with pure He and lowest with pure Ar. Microstructural analysis revealed variations in dendritic structures, with pure He producing the finest cellular and equiaxed structures. …”
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